Israeli warplanes pummelled parts of Gaza early on Thursday with heavy strikes reported on Nuseirat refugee camp in central Gaza and parts of Gaza City.
Several people were killed and injured in the strikes which decimated neighbourhoods, Palestinian news agency Wafa reported. It described the attacks as "fire belts" on northern Nuseirat.
Hamas leader Ismail Haniyeh vowed that the Israeli airstrike which killed his children and grandchildren in Gaza as they celebrated Eid al-Fitr on Wednesday will not pressure the group into changing their position on tense ceasefire talks.
Haniyeh, who is based in Doha and heads the political bureau, said that Israel is "delusional" if it thinks killing his three sons and five grandchildren will cause Hamas to shift its approach.
Meanwhile, threats of an Iranian retaliation for the 1 April Israeli strike which took out an Iranian consulate building in Damascus and senior members of the Revolutionary Guard continue to ramp up as overnight with US intelligence sources predicting an imminent attack on US or Israeli assets in the region.
